Comparing probiotic and ethyl lauroyl arginate mouthwashes for lowering cavity‑causing bacteria and plaque in Egyptian schoolchildren
Official title: Comparative Evaluation of Probiotic-Based Versus Ethyl Lauroyl Arginate-Containing Mouthwashes on Streptococcus Mutans Counts, Dental Plaque Accumulation, and Salivary pH in a Group of Egyptian School Children: A Randomized Controlled Clinical Trial
Run by Al-Azhar University · NCT07356869 · Data updated 2026-11-12
This study will test whether a probiotic mouthwash or an ethyl lauroyl arginate mouthwash better lowers Streptococcus mutans, reduces dental plaque, and affects salivary pH in healthy Egyptian children aged 6–12.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 6 Years to 12 Years |
| Sex | All |
| Enrollment | 66 (estimated) |
| Sponsor | Al-Azhar University Academic / other |
| Locations | 1 site (Cairo) |
| Status | Recruiting |
| Started | August 15, 2025 |
| Main results expected | September 1, 2026 |
| Study ends | September 1, 2026 |
| Registry record updated | January 21, 2026 |
| Trial ID | NCT07356869 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Healthy Egyptian schoolchildren aged 6–12 with mild to moderate dental plaque and parent or caregiver consent are the ideal candidates.
✕Probably not a fit
Children who recently used antibiotics, have allergies to mouthwash ingredients, systemic diseases affecting oral health, orthodontic appliances, or large restorations are unlikely to benefit from the interventions tested.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
Children receive professional dental cleaning and are then assigned to use either a probiotic mouthwash or an ethyl lauroyl arginate (LAE) mouthwash over a defined follow-up period. Investigators measure Streptococcus mutans counts, dental plaque accumulation, and salivary pH at baseline and after treatment to compare effects. The trial is conducted at the Faculty of Dentistry, Al‑Azhar University, with eligibility limited to healthy schoolchildren who have mild to moderate plaque and parental consent. Participants with recent antibiotic use, allergies to mouthwash components, systemic disease, orthodontic appliances, or extensive restorations are excluded.
Why it matters
Potential benefit: If successful, the preferred mouthwash could lower levels of cavity‑causing bacteria and plaque and help reduce future caries risk in children.
How similar studies have gone: Prior research has shown that both LAE and some oral probiotics can reduce S. mutans counts and biofilm, though direct head‑to‑head comparisons in children are limited.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Healthy Egyptian schoolchildren aged 6-12 years. * Good general health. * Mild to moderate dental plaque accumulation. * Parental/caregiver willingness to provide consent Exclusion Criteria: * Antibiotic or antimicrobial use within the last month. * Allergies to the mouthwash components. * Systemic diseases affecting oral health. * Orthodontic appliances or extensive dental restorations.
Where it's running
-
Al-Azhar University (Faculty of Dentistry)
Cairo, Egypt Recruiting
Study contacts
- Study coordinator: Mohamed O Abdelrazik, MBBCH
- Email: mohamedghitany96@gmail.com
- Phone: 00201017005990
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.